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O Type Observation Autogyro Kai Ni

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O Type Observation Autogyro Kai Ni

No.325 オ号観測機改二

Rotorcraft Autogyro

Effects: Firepower+1 Accuracy+1 Anti-Submarine+11 View Range+1

Scrap Value: Fuel1 Ammunition3 Bauxite4

Equipment Card O Type Observation Autogyro Kai Ni.png

Equipment Character O Type Observation Autogyro Kai Ni.png

Equipment Item O Type Observation Autogyro Kai Ni.png

Equipment Full O Type Observation Autogyro Kai Ni.png

Refittable Class
Coastal Defense ShipDestroyer
Light CruiserTorpedo Cruiser
Heavy CruiserAviation Cruiser
BattleshipAviation Battleship
Fast BattleshipLight Carrier
Standard CarrierArmored Carrier
Seaplane TenderSubmarine Tender
SubmarineSubmarine Carrier
Repair ShipTraining Cruiser
Fleet OilerAmphibious Assault Ship



This is an autogyro developed and operated by the Army. This is the final what-if version with its engine and anti-submarine capabilities further enhanced.
An ancestor of the modern patrol helicopter, it can provide powerful ASW capabilities when deployed on the refitted aviation battleships with through flight decks.


As +7 ASW Anti-Submarine Warfare aircraft, they can be used to trigger special OASW.

  • Will launch during aerial battle if other planes are launched, but cannot start an aerial battle on its own.
  • CV/B/L equipped with them will still require a Dive Bomber Dive Bomber or a Torpedo Bomber Torpedo Bomber to attack submarines, as they are unable to attack anything without a bomber.
  • AS and Akashi can equip them, but the former cannot attack SS, and the latter has a carrying capacity of 0 so it does not function.
  • AO can equip them, but their attack animation will still be a depth charge animation.

How To Obtain

Upgradeable from O Type Observation Autogyro KaiO Type Observation Autogyro Kai

Ranking reward for:

  • May 2019: 1-5 (★+3), 6-20 (★+3)

Updates History

  • 2019-03-27: Implemented
  • 2020-08-27: Visible bonuses increased

Fit Bonuses

Ship Extra Requirement Firepower Torpedo Attack Anti-Air Anti-Submarine Warfare Line of Sight Armor Evasion Note
Ise Kai NiIse Kai Ni +1 +2 +1 [1]
Hyuuga Kai NiHyuuga Kai Ni
Kaga Kai Ni GoKaga Kai Ni Go
+2 +3 +1 [2]
Noshiro Kai NiNoshiro Kai Ni +4 +1 Non-stackable between any Rotorcraft
Yahagi Kai Ni (B)Yahagi Kai Ni
Yahagi Kai Ni B
+3 +1 Non-stackable between any Rotorcraft
  1. Firepower+0 Anti-Submarine Warfare+1 prior to 2020-08-27
  2. Firepower+0 Anti-Submarine Warfare+2 prior to 2020-08-27

Akashi's Improvement Arsenal

Type Name Resource Day 2nd Ship Note
Fuel Ammunition Steel Bauxite Item Icon Development Material.png Item Icon Improvement Material.png # of equipment needed for that upgrade. An asterisk following the number indicates a different equipment is required. Sun Mon Tue Wed Thu Fri Sat
Rotorcraft O Type Observation Autogyro Kai Ni 0 80 70 60 190 7/8 4/5 1xSeaplane.png X X X H H H X Hyuuga Kai Ni Upgrades to S-51J.
6 8/9 5/6 2xRedPlane.png
10 50/80 10/20 1xHeli.png
3xNew Model Aerial Armament Material

See Also